Edexcel GCSE Computer Science

2.3.5: understand the need for, and how to use, global and local variables when implementing subprograms

Keywords:

Programming

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Keyword	Definition
Global variable	a variable that can be accessed from any part of the code because it was declared outside any sub program
Local variable	a variable that can only be accessed inside the sub program where it was declared.
Scope	the part of a program where you can access a variable or constant
Sub program	a part of a program (procedure or function) that has its own scope

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Keyword games:

BugZap

Connect the wires to complete the circuit and zap the bug. The faster you choose the right keyword, the more points you get for zapping the bug!

Crossword

Use the clues to guess the keywords and fill in the blank spaces on the crossword

Eliminate

Click on the keywords that do not match the definition

Flappy Word

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Hangman Definitions

Guess the letters of the definition

Hangman Keywords

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Jumble Keyword

Rearrange the letters of the keyword into the right order

Random

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Snake

Control the snake to eat each letter of the keyword in order

TypeRace

Type out the definitions as fast as you can

Wordsearch

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